未从委托调用captureOutput

import AVFoundation

class ViewController: UIViewController, AVCaptureVideoDataOutputSampleBufferDelegate {
    let captureSession = AVCaptureSession()
    let videoOutput = AVCaptureVideoDataOutput()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 配置捕获会话
        captureSession.beginConfiguration()
        
        // 配置输入设备
        
        // 配置输出设备
        if captureSession.canAddOutput(videoOutput) {
            captureSession.addOutput(videoOutput)
            videoOutput.setSampleBufferDelegate(self, queue: DispatchQueue.main)
        }
        
        captureSession.commitConfiguration()
    }
    
    // AVCaptureVideoDataOutputSampleBufferDelegate 委托方法
    func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
        // 处理音视频数据
    }
}